Illinois Department of Transportation (IDOT) · Standard Specifications for Road and Bridge Construction
Section 1079 — DETECTOR LOOP
Illinois Standard Specifications for Road and Bridge Construction, Section 1079. Full text, cross-references and related pay items on BuildSpec.
Art. 1079.01 Detector Loop 1032 The inductive loop detector shall have a minimum of two modes of operation, presence or pulse. The inductive loop detector shall be capable of self tuning. The inductive loop detector shall, in a failure condition, register a continuous call to the signal controller. Extend Call – Delay Call. The inductive loop detector shall change from delay mode to extend mode and vice versa at the end of the time set for each mode. The inductive loop detector shall have a means of visually indicating the timings of delay and extension settings are in effect. (b) Special…
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